Using the metric systems for the measuring of industrial bolts as well as metric bolts is becoming increasingly common in industry in the United States. The metric system may also be known as the International System or SI (from the French, Systeme International d’Unites). Read More…

Leading Manufacturers
Ford Fasteners, Inc.
Fairfield, NJ | 800-272-3673Our company has a reputation for superior products, customer service, and dependability. All our fastener products are built to last, and we know that our customers appreciate our dedication to using the best materials and manufacturing techniques. If you would like to learn more about us, contact us by phone or email, or stop by our website today!

Ken Forging
Jefferson, OH | 888-536-3674Our company has manufacturing experiences dating back to 1970 and over the years we have grown into an international supplier of bolts.

Southern Fasteners & Supply, Inc.
Winston-Salem, NC | 800-642-0921From our inventory of over 130,000 different fasteners, we know precisely which ones are right for your application. We test them for material composition and measurement accuracy. With our Vendor Management Inventory service (VMI) our Service Technicians monitor your needs and keep you fully supplied at all times. Our ISO 9001 and AS9120B certifications helps us maintain system standards that ensure the fasteners we supply are the highest quality parts available.

G-Fast Distribution, Inc.
Highland Park, IL | 847-926-0722G-Fast brings you precision components and fasteners that are designed for commercial and military applications. We specialize in precision machined components, special fasteners, cold-formed bolts, studs and shoulder screws, deep drawn parts, metal spinning, wire forming and a whole host of other services. We’ve been doing this since 1990 and would love to see you be our next customer!

Engineered Components Company
Elgin, IL | 847-841-7000We have the bolts that you can count on to keep your business moving along smoothly! Each of our products is put through testing to ensure quality, as well as being made of only the highest quality materials. We strive to uphold our reputation as one of the leading bolt manufacturers. Get in touch with our customer service representatives today!
Fastener Technology Corp.
North Hollywood, CA | 818-764-6467FTC is regarded by many aerospace leaders as a preferred supplier of industrial fasteners. We make a variety of innovative standard & custom high-strength aerospace fasteners & captive fasteners, such as our Magic Groove™ fully retractable, structural captive screw. World class quality in record time.

PennEngineering®
Danboro, PA | 800-237-4736Here at PennEngineering, we are proud to say that our products are manufactured right here in the United States. We provide our customers with a variety of services including: wire forming, stamping, metal finishing, closed die forming, hot forging and open die cold forming. Our J bolts are quality-assured and require low maintenance. Contact one of our representatives to learn more information about our products.

More Metric Bolts Suppliers
There is such a wide range of metric bolts and fasteners that it can be complicated to find the right size for an application. They can be purchased individually or according to a specific design and size requirement. Metric fasteners are indicated by the letter M followed by the inner fastener diameter in millimeters (mm), for example, M5 for a bolt that is five millimeters in diameter. Bolts are typically available in both metric and non-metric designations and non-metric bolts and screws are also measured according to diameter but this is labeled in inches and parts of inches rather than millimeters. Some English bolts also use a separate numbering system that increases in size accordingly.
Commonly used for both structural and non-structural applications, metric bolts, screws and other fastening components are able to be constructed with full threading or partial threading. Construction, equipment joining and securing, automotive engines on cars, motorcycles and larger machines are all examples of common uses of bolts. Due to the wide range of application and intended use for bolts, there are a number of factors to consider when determining the most suitable style and materials for specific purposes. For heavy load and structural uses such as foundation or bridge securing, anchor bolts are used.
If an application requires corrosion resistant materials which are able to be used for even heavy duty purposes, stainless steel bolts are the most suitable choice. Most types of bolts are available in metric sizes, and many bolt manufacturers will stock a comprehensive inventory of metric bolts, nuts and screws in order to be able to meet the wide range of needs in terms of size and capability. Hex bolts are the standard design for the heads of metric bolts, although this can change based on application. Other typical head designs include flange head types, or the more complex eye bolts or loop bolts.